• Declutchable Manual Override Gear Operators

    Features and Options

    • Declutchable manual gear override for operation of automated quarter-turn ball or butterfly valves
    • Designed to mount between valve and actuator for emergency override in case of power or air loss
    • Heavy-duty cast iron bodies with corrosion resistant treatment for tough environments
    • Worm gear design on all units with spur assist (DT-50-SD, DT-54-SD, DT-90-SD and DT-140-SD models)
    • Torque outputs to 140000 inch pounds
    • Enclosure sealed with BUNA o-rings
    • Customizable drive coupler and mounting kits to fit virtually any valve and/or actuator
    • Standard cast handwheels
    • ±5º adjustable travel stops
    • Standard ISO 5211 top and bottom flange mounting
    • Locks in both the engaged and disengaged positions
    • Available for use with BI-TORQ® pneumatic actuators or fusible link assemblies

  • Gear Operated Butterfly Valves/Chainwheel Operators

    Features and Options

    • Aluminum chainwheels and guide arms with options for cast or stainless steel construction
    • For cast iron or aluminum gear operators
    • Size equivalents to 4" to 36" handwheels
    • Clamp-on style available upon request
    • Customizable hub to fit a variety of gear operator styles
    • Heavy-duty industrial chain and master links available with all sizes of chainwheel operators
    • Lock-out/tag-out options available
    • Secondary restraint cable system available for additional safety requirements
    • Lightweight design